Results 31 to 40 of about 53,373 (308)
SUBSTITUTED 4-NITROSOPYRAZOLES IN THE DIELS-ALDER REACTION
Siberian Journal of Life Sciences and Agriculture, 2021 Background. 4-Nitrosopyrazoles have become widespread in the pharmaceutical industry and in chemistry due to their high reactivity and biological activity. However, the interaction of 3,5-substituted 4-nitroso-1H-pyrazoles with diene hydrocarbons has not
Darya S. Volkova +4 more
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Molbank, 2022 Pyrazoles have potential applications in the agrochemical and medicinal chemistry industries as pesticides, anti-inflammatory medications, and antitumor drugs. Fluorinated fused-ring pyrazoles may also possess medicinally useful properties.
Linh Lam, Sang H. Park, Joseph Sloop
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Nickel-Catalyzed, One-Pot Synthesis of Pyrazoles
Chemistry Proceedings, 2022 Recently, multi-component, one-pot reactions have been shown to be efficient and environmentally friendly methods compared to traditional, linear-step syntheses.
Nassima Medjahed +4 more
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Preparation of novel acyl pyrazoles and triazoles by means of oxidative functionalization reactions
Heterocyclic Communications, 2023 Novel acyl pyrazoles and acyl triazoles have been prepared by means of the oxidative amidation of aldehydes in the presence of the requisite azole. Yields range from modest to good in both cases, and some limitations of the substrate scope have been ...
Wadey Geoffrey P. +3 more
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Journal of Saudi Chemical Society, 2015 Several-1-carbothioamide-3,5-dimethyl-4-[(substituted phenyl) diazenyl] pyrazoles 2a–d, 1-(pyridine-4-ylcarbonyl)-3,5-dimethyl-4-[(substituted phenyl) diazenyl] pyrazoles 3a–d, 1-(5-chloro-6-fluoro-1,3-benzothiazole-2-yl)thiocarbamoyl-3,5-dimethyl-4 ...
Sabir Hussain, Deepika Kaushik
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Engineered Enzymes Enable Selective N‐Alkylation of Pyrazoles With Simple Haloalkanes
Angewandte Chemie, 2020 Selective alkylation of pyrazoles could solve a challenge in chemistry and streamline synthesis of important molecules. Here we report catalyst‐controlled pyrazole alkylation by a cyclic two‐enzyme cascade.
Ludwig L. Bengel +5 more
semanticscholar +1 more source
Recent Advances in Synthesis and Properties of Nitrated-Pyrazoles Based Energetic Compounds
Molecules, 2020 Nitrated-pyrazole-based energetic compounds have attracted wide publicity in the field of energetic materials (EMs) due to their high heat of formation, high density, tailored thermal stability, and detonation performance.
Shi-Jie Zhang +6 more
semanticscholar +1 more source
Current Medicine Research and Practice, 2021 Background: ACE2 is a receptor for Corona virus. COVID-19 (coronavirus) is a deadly virus which can enter the human body through 'angiotensin-converting enzyme 2' human cells, hardly damages the respiratory system. On severe infection on these cells make
Ganesh N Yallappa +2 more
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Bulletin of the Chemical Society of Ethiopia, 2014 Some aryl-aryl 1H pyrazoles have been synthesised by cyclization of aryl chalcones and hydrazine hydrate in the presence of SOCl2. The yields of the pyrazoles are more than 85%.
K. Ranganathan +5 more
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